American Made Welding Equipment, Family Owned and Operated Since 1966
| D/F MIG Welding Contact Tips |
D/F "MIG" Welding Contact Tips - General InformationD/F Machine Specialties, family owned and operated since 1966, is a world leader in the design, development, and manufacture of American made "MIG" (GMAW) & "TIG" (GTAW) torches for robotic and welding automation equipment, welding products, and consumables. D/F Machine Specialties genuine American torch tips and nozzles deliver the performance and reliability you need to minimize your production costs while maximizing welding efficiencies! Many large manufacturers with robotic assembly lines have discovered the advantages of using a D/F Machine Specialties genuine American torch tip; dramatically reducing down time for tip changes, therefore increasing productivity.
We manufacture a complete line of standard size C122 DHP current tips and a complete line of standard size CuCrZr long-life current tips, as well as any custom contact tip configuration you may need. We can make any style of tip, in any quantity, for wires of .030" (.8mm), .035" (.9mm), .045" (1.2mm), .052" (1.4mm), 1/16" (1.6mm), 3/64" (1.2mm), 5/64" (2mm), 3/32" (2.4mm), 1/8" (3.2mm) and other diameters. Each requirement is quoted quickly and accurately to meet your needs. The Torch Models NCM (Slip-In Contact Tip) has a current capacity 750 amps in argon shielding. These accommodate slip-in current tips fastened by a collet action nut. The wire diameter range with hard wire is .030"-1/16", cored wire .035"-1/8", and aluminum wire range of .035"-3/32".The Torch Models HTM (Threaded Contact Tip) has a current capacity range of 850 amperes. Rating will be contingent on the combination of current tip and shielding gas to be used. The Model HTM employs threaded CrZr (chromium zirconium copper) current tips and will accommodate .030" - 1/16" hard wire, .035" – 1/8" cored wire and 3/64" - 3/32" aluminum wires. In some instances C122 DHP is adequate, but for stainless steel and stiff, high column strength or abrasive wires such as Flux cored / Metal cored, CuCrZr is the correct choice. D/F Machine Specialties can increase several key characteristics creating a higher-quality consumable with increased conductivity, even higher softening temperature and improved hardness. This means a reduction in "arc start failures" and increased tip life. Copper Chromium Zirconium (CuCrZr) Tips Increase Productivity.  10789 - .045" (1.15mm) Slip-In Copper Contact/Current Tip Copper Contact/Current Tips - 1/4" Diameter Slip-In
 10885 - .045" (1.15mm) Slip-In Copper Contact/Current Tip Copper Contact/Current Tips - 5/16" Diameter Slip-In
 10795 - .045" (1.15mm) Slip-In Copper Contact/Current Tip Copper Contact/Current Tips - 2 1/2" Slip-In 1/4" Diameter
 19392 - .045" (1.15mm) Slip-In Copper Contact/Current Tip Copper Contact/Current Tips - 2 1/2" Slip-In 5/16" Diameter
 15117 - .045" (1.15mm) Threaded CuCrZr - (Cu-Copper Cr-Chromium Zr-Zirconium) Copper Contact/Current Tip  15106 - .045" (1.15mm) Threaded CuCrZr - (Cu-Copper Cr-Chromium Zr-Zirconium) Copper Contact/Current Tip Copper Contact/Current Tips - 7/16" Diameter Threaded
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| ORDERING INFORMATION - 7/16" DIAMETER THREADED |
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| Gun or Barrel Model |
Wire Size |
Wire Type | Code No. |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Threaded Tips) (Tip provides 1/8" set back) |
.035" (.9mm) .045" (1.2mm) .052" (1.4mm) 1/16" (1.6mm) 5/64" (2mm) 3/32" (2.4mm) 7/64" (2.8mm) 1/8" (3.2mm) |
Hard Hard Hard Hard Hard Hard Hard Hard |
15116 15117 15121 15118 15119 15120 15122 15105 |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Threaded Tips) (Tip provides 3/8" set back) |
.045" (1.2mm) 1/16" (1.6mm) 5/64" (2mm) 3/32" (2.4mm) 7/64" (2.8mm) 1/8" (3.2mm) |
Cored Cored Cored Cored Cored Cored |
15106 15107 15108 15109 15110 15111 |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Tip provides 1/8" set back) |
3/64" (1.2mm) 1/16" (1.6mm) 3/32" (2.4mm) 1/8" (3.2mm) |
Aluminum Aluminum Aluminum Aluminum |
15126 15125 15148 15123 |
10757 - .045" (1.15mm) Threaded
Copper Contact/Current Tip
Copper Contact/Current Tips - 5/16" Diameter Threaded
| ORDERING INFORMATION - 5/16" DIAMETER THREADED |
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| Gun or Barrel Model |
Wire Size |
Wire Type | Code No. |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Threaded Tips) (Tip provides 1/8" set back) |
.035" (.9mm) .045" (1.2mm) .052" (1.4mm) 1/16" (1.6mm) 5/64" (2mm) 3/32" (2.4mm) |
Hard Hard Hard Hard Hard Hard |
10756 10757 10841 10759 10761 10763 |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Threaded Tips) (Tip provides 3/8" set back) |
.045" (1.2mm) 1/16" (1.6mm) 5/64" (2mm) 3/32" (2.4mm) 7/64" (2.8mm) |
Cored Cored Cored Cored Cored |
10750 10751 10752 10753 10754 |
10911 - .045" (1.15mm) Bullet Threaded
Copper Contact/Current Tip
Copper Contact/Current Tips - 5/16" Diameter Bullet Threaded
| ORDERING INFORMATION - 5/16" DIAMETER BULLET THREADED |
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| Gun or Barrel Model |
Wire Size |
Wire Type | Code No. |
| All HTC, HTM, CTW, CW-C, CW-T, MTW (Threaded Tips) (Tip provides 1/8" set back) |
.030" (.8mm) .035" (.9mm) .045" (1.2mm) .052" (1.4mm) 1/16" (1.6mm) |
Hard Hard Hard Hard Hard |
10909 10910 10911 10912 10913 |
15183 - 3/32" (2.4mm) "BIG MIG" Slip-In
Copper Contact/Current Tip
Copper Contact/Current Tips - 7/16" Diameter "BIG MIG" Slip-In
| ORDERING INFORMATION - 7/16" DIAMETER SLIP-IN |
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| Gun or Barrel Model |
Wire Size |
Wire Type | Code No. |
| NCM15 ("BIG MIG") (Slip-In Tips) (Tip provides 1/8" set back) |
1/16" (1.6mm) 5/64" (2mm) 3/32" (2.4mm) 7/64" (2.8mm) 1/8" (3.2mm) 5/32" (4mm) |
Cored Cored Cored Cored Cored Cored |
15181 15182 15183 15184 15185 15186 |
| NCM15 ("BIG MIG") (Slip-In Tips) (Tip provides 1/8" set back) |
1/16" (1.6mm) 3/32" (2.4mm) 1/8" (3.2mm) 5/32" (4mm) 3/16" (4.8mm) 7/32" (5.6mm) |
Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum |
10798 10799 10700 15186 15169 15170 |
15062 - .045" (1.15mm) Bent Slip-In
Copper Contact/Current Tip
Copper Contact/Current Tips - 1/4" Diameter Bent Slip-In
| ORDERING INFORMATION - 1/4" DIAMETER BENT SLIP-IN |
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| Gun or Barrel Model |
Wire Size |
Wire Type | Code No. |
| All NCC, NCM (Slip-In Tips) (Tip provides 1/8" set back) |
.045" (1.2mm) .035" (.9mm) 3/64" (1.2mm) 1/16" (1.6mm) |
Hard Hard Aluminum Aluminum |
15062 15065 15072 15073 |
Welding Tip Alloy Comparison - Genuine D/F American Torch Tips
Standard DHP (Regular Copper) - world wide standard excellent general purpose.
CuCrZr - (Cu-Copper Cr-Chromium Zr-Zirconium) a very hard alloy, has been around for years made for stainless steel and stiff, high column strength or abrasive wires such as Flux cored / Metal cored. If you are attempting to get a sure start you need to choose the best alloy, whether for electrical or physical wear. The next reason a tip wears is due to heat. As the tip heats from the welding process the properties of the alloys start to break down. The ability of the tip to dissipate the heat (thermal conductivity) will aid in keeping the tip cooler. The (electrical resistance) of the alloy is also inversely proportional to the electrical conductivity. As we need a sure start and are attempting to jump the gap from the contact tip to wire, these two factors play a critical role--if the tip has higher conductivity of electricity it will transfer the current easier (or with less resistance) which will also cause the tip to run cooler. Resistance equals heat. The additional benefit to higher conductivity is that the arc transfer from the tip to the wire is easier. Easier arc transfer means a superior sure start and less arc failure or wire burn back, sputtering and spatter.
There are 2 main reasons a welding tip wears:
- Common physical wear or abrasion, if you were to place a tip on the wire before the feeder with NO electrical contact, that tip would eventually wear completely through.
- Electrical erosion is similar to the brushes on an electrical motor or the spark jumping across the gap on a spark plug. For example, if the wire is traveling through the Contact tip at 300 IPM the electricity has to jump across from the copper tip to the "MIG" wire (Hence the name "Contact Tip"). The inside bore of the tip and the welding wire are in constant electrical arcing as this process is happening. Electrical erosion is melting of the welding tip ID.
Make sure the gun tip isn't worn out or that weld spatter is not on the tip near the exit hole. The contact tip in the gun should be perfectly round and just a few thousandths larger than the wire itself. Worn tips are typically oval and can cause an erratic arc from the random electrical connection and physical movement of the wire inside the worn tip. A genuine D/F Machine Specialties American torch tip is precisely made from a wear-resistant copper alloy for superior welding performance. If the contact tip enters the molten weld pool, it should be immediately replaced. For most casual welders, a good rule of thumb to assure high quality welding is to change the tip after ever 100 lbs. of wire. Another point to remember about contact tips is that they should always be threaded completely into the gas diffuser and tightened prior to welding to give a smooth flow of welding current.
D/F Machine Specialties is a family-owned and operated company that has been committed to producing American made products with American made materials for the last 45 years, and has been the innovator of all of its products. Quality and service are surpassed by no one. This attention to detail transfers to the customers receiving the finest American made welding products available on the market today.
